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If "n parties confirm at time X that the page said something" is good enough, then "n parties confirm that the page said something at time X" should also be goo
by ikeboy 10y ago
If "n parties confirm at time X that the page said something" is good enough, then "n parties confirm that the page said something at time X" should also be good enough. If you trust that collection of parties to not have colluded at time X, you should also trust them to not be colluding now.
- vidarh 10y agoBut this requires the record to be maintained at a sufficient number of those parties, and that's a problem - maintaining records over long periods of time is hard. This is why creating a cryptographically secured record is worthwhile - it does not require the parties to still be around to vouch for the record.
- ikeboy 10y agoBut that doesn't require a blockchain: each party can individually sign it with their own key, and some third party can collect all the records and the signatures.
- vidarh 10y agoNow you have to trust that the third party don't omit anything or add entries from other parties. There are certainly alternative means to guarantee the same properties, depending on your trust model, but they will quickly start acquiring the same complexities.